Error: String reference not set to an instance of a String. Parameter name: s

Question

Dear Colleagues,

I have a problem with SDL Studio 2019. I used trial version for about 20 days, then tried to activate my license (upgraded from Studio 2017), and it returns this error after I select 5 languages. Looks like the error is not with SDL. I tried several options, re-installed several times, deleted previous SDL version folders in Roaming, AppData etc. Nothing helped.

I tried both SDLTradosStudio2019_SR2_15.2.7.2849.exe and SDLTradosStudio2019_SR2_15.2.6.2831.exe (just for the experiment sake)

Attaching below the error xml.

Fullscreen sdlerror-2020817-10h14m43s.sdlerror.xml Download

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<SDLErrorDetails time="17.08.2020 10:15:11">
  <ErrorMessage>String reference not set to an instance of a String.
Parameter name: s</ErrorMessage>
  <Exception>
    <Type>System.ArgumentNullException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</Type>
    <ParamName>s</ParamName>
    <HelpLink />
    <Source>mscorlib</Source>
    <HResult>-2147467261</HResult>
    <StackTrace><![CDATA[   at System.Text.Encoding.GetBytes(String s)
   at Sdl.TranslationStudio.Common.Licencing.FreelanceSelections.set_ConfiguredLanguages(List`1 value)
   at Sdl.TranslationStudio.Common.SetupWizard.LanguageChoiceWizardPageControl.UpdateData()
   at Sdl.TranslationStudio.Common.SetupWizard.LanguageChoiceWizardPage.OnNext()
   at Sdl.Desktop.Platform.Wizard.AbstractInternalWizardPage`1.OnFinish()
   at Sdl.Desktop.Platform.Wizard.AbstractWizard`1.Finish()
   at Sdl.Desktop.Platform.Wizard.AbstractWizard`1._form_Finish(Object sender, CancelEventArgs e)
   at Sdl.Desktop.Platform.WPF.ViewModel.WPFWizardFormViewModel`1.Execute_FinishCommand()
   at Sdl.Desktop.Platform.MVVM.DelegateCommand.<>c__DisplayClass1_0.<.ctor>b__0(Object x)
   at Sdl.Desktop.Platform.MVVM.DelegateCommand`1.Execute(Object parameter)
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

<SDLErrorDetails time="17.08.2020 10:15:11">
  <ErrorMessage>String reference not set to an instance of a String.
Parameter name: s</ErrorMessage>
  <Exception>
    <Type>System.ArgumentNullException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</Type>
    <ParamName>s</ParamName>
    <HelpLink />
    <Source>mscorlib</Source>
    <HResult>-2147467261</HResult>
    <StackTrace><![CDATA[   at System.Text.Encoding.GetBytes(String s)
   at Sdl.TranslationStudio.Common.Licencing.FreelanceSelections.set_ConfiguredLanguages(List`1 value)
   at Sdl.TranslationStudio.Common.SetupWizard.LanguageChoiceWizardPageControl.UpdateData()
   at Sdl.TranslationStudio.Common.SetupWizard.LanguageChoiceWizardPage.OnNext()
   at Sdl.Desktop.Platform.Wizard.AbstractInternalWizardPage`1.OnFinish()
   at Sdl.Desktop.Platform.Wizard.AbstractWizard`1.Finish()
   at Sdl.Desktop.Platform.Wizard.AbstractWizard`1._form_Finish(Object sender, CancelEventArgs e)
   at Sdl.Desktop.Platform.WPF.ViewModel.WPFWizardFormViewModel`1.Execute_FinishCommand()
   at Sdl.Desktop.Platform.MVVM.DelegateCommand.<>c__DisplayClass1_0.<.ctor>b__0(Object x)
   at Sdl.Desktop.Platform.MVVM.DelegateCommand`1.Execute(Object parameter)
   at MS.Internal.Commands.CommandHelpers.CriticalExecuteCommandSource(ICommandSource commandSource, Boolean userInitiated)
   at System.Windows.Controls.Primitives.ButtonBase.OnClick()
   at System.Windows.Controls.Button.OnClick()
   at System.Windows.Controls.Primitives.ButtonBase.OnMouseLeftButtonUp(MouseButtonEventArgs e)
   at System.Windows.UIElement.OnMouseLeftButtonUpThunk(Object sender, MouseButtonEventArgs e)
   at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
   at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   at System.Windows.UIElement.ReRaiseEventAs(DependencyObject sender, RoutedEventArgs args, RoutedEvent newEvent)
   at System.Windows.UIElement.OnMouseUpThunk(Object sender, MouseButtonEventArgs e)
   at System.Windows.Input.MouseButtonEventArgs.InvokeEventHandler(Delegate genericHandler, Object genericTarget)
   at System.Windows.RoutedEventArgs.InvokeHandler(Delegate handler, Object target)
   at System.Windows.RoutedEventHandlerInfo.InvokeHandler(Object target, RoutedEventArgs routedEventArgs)
   at System.Windows.EventRoute.InvokeHandlersImpl(Object source, RoutedEventArgs args, Boolean reRaised)
   at System.Windows.UIElement.RaiseEventImpl(DependencyObject sender, RoutedEventArgs args)
   at System.Windows.UIElement.RaiseTrustedEvent(RoutedEventArgs args)
   at System.Windows.UIElement.RaiseEvent(RoutedEventArgs args, Boolean trusted)
   at System.Windows.Input.InputManager.ProcessStagingArea()
   at System.Windows.Input.InputManager.ProcessInput(InputEventArgs input)
   at System.Windows.Input.InputProviderSite.ReportInput(InputReport inputReport)
   at System.Windows.Interop.HwndMouseInputProvider.ReportInput(IntPtr hwnd, InputMode mode, Int32 timestamp, RawMouseActions actions, Int32 x, Int32 y, Int32 wheel)
   at System.Windows.Interop.HwndMouseInputProvider.FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at System.Windows.Interop.HwndSource.InputFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
   at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
   at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)
   at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
   at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
   at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
   at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
   at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
   at System.Windows.Window.ShowHelper(Object booleanBox)
   at System.Windows.Window.Show()
   at System.Windows.Window.ShowDialog()
   at Sdl.Desktop.Platform.WPF.ViewModel.WPFWizardFormViewModel`1.ShowDialog(IWin32Window owner)
   at Sdl.TranslationStudio.Common.SetupWizard.SetupWizardLauncher.Execute()
   at Sdl.Desktop.Platform.Implementation.Studio.ExecuteStartupExtensions(ISplashScreen splashScreen)
   at Sdl.Desktop.Platform.Implementation.Studio.Run(ISplashScreen splashScreen, IEventAggregator eventAggregator)
   at Sdl.TranslationStudio.Application.Launcher.RunApplication()]]></StackTrace>
  </Exception>
  <Environment>
    <ProductName>SDL Trados Studio</ProductName>
    <ProductVersion>15.0.0.0</ProductVersion>
    <EntryAssemblyFileVersion>15.2.6.2831</EntryAssemblyFileVersion>
    <OperatingSystem>Майкрософт Windows 10 Домашняя для одного языка</OperatingSystem>
    <ServicePack>NULL</ServicePack>
    <OperatingSystemLanguage>1049</OperatingSystemLanguage>
    <CodePage>1251</CodePage>
    <LoggedOnUser>DESKTOP-CEC6B6Q\Optimus</LoggedOnUser>
    <DotNetFrameWork>4.0.30319.42000</DotNetFrameWork>
    <ComputerName>DESKTOP-CEC6B6Q</ComputerName>
    <ConnectedToNetwork>True</ConnectedToNetwork>
    <PhysicalMemory>8270668 MB</PhysicalMemory>
  </Environment>
</SDLErrorDetails>

Thanks in advance,

Georgy

Georgy Nadelkin · Accepted Answer

My issue was resolved. It was about Microsoft registry (some incompatibility of original and regional languages in Windows 10), not related to SDL Studio. 
 SDL Support has done an excellent job! As usual! Thanks to Steven Whale for a Gateway link with the possible workaround summary; all these worked well for me previously. 
 Georgy

Lydia Simplicio · Answer

Hello Georgy Nadelkin , 
 I note that you already have a support ticket logged. 
 Perhaps it's worth running through the standards solutions here, beforehand as support will often try these first. 
 https://gateway.sdl.com/apex/communityknowledge?articleName=000001414 
 Reinstalling Studio when an error hasn't been identified, will rarely resolve the problem if the cause isn't known.

Lydia Simplicio · Answer

Hello Georgy Nadelkin , 
 Thanks for updating the thread- this always helps others to know what the issue was.

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Error: String reference not set to an instance of a String. Parameter name: s

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